VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae

Detalhes bibliográficos
Autor(a) principal: Jacinto, Ana Carolina Pires
Data de Publicação: 2022
Outros Autores: Castoldi, Renata, Maciel, Gabriel Mascarenhas, Prado, Jair Rocha do, Charlo, Hamilton César de Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/10752
Resumo: The use of resistant cultivars is one of the strategies for downy mildew management. The objective of this study was to evaluate the vertical and horizontal resistance of F5:6 progenies of carotenoid-biofortified lettuce to virulence phenotypes of Bremia lactucae 63/63/51/00, 63/31/19/00 and 63/63/19/00. The experimental design was completely randomized and subdivided into plots that were evaluated over time. In the plots, 12 genotypes of lettuce were used, and the subplots were monitored over time (7th to the 18th day after inoculation). For each virulence phenotypes of Bremia lactucae, a separate experiment was performed with three replicates. To select resistant genotypes, plants were inoculated with distilled water, sporangia removed from infected tissues and Tween 20. The genotypes were evaluated when sporulation appeared on cotyledonary leaves of the susceptible cultivar Solaris, verifying the proportion of necrotic and sporulated plants. There was a correlation between genotypes and times for all virulence phenotypes evaluated. Genotypes UFU-189#2, UFU-206#1, UFU-215#3 and UFU-215#14 showed vertical resistance to virulence phenotypes 63/63/51/00, 63/31/19/00, and 63/63/19/00 of B. lactucae. Horizontal resistance levels were observed in genotype UFU 206#1 for virulence phenotypes 63/63/51/00 and 63/31/19/00; in genotype UFU-66#7 for virulent phenotype 63/31/19/00; and in genotype UFU-215#10 for virulence phenotype 63/63/19/00.
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spelling VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucaeRESISTÊNCIA VERTICAL E HORIZONTAL DE PROGÊNIES F5:6 DE ALFACE BIOFORTIFICADA COM CAROTENOIDES A Bremia lactucaeLactuca sativa (L.). Míldio. Resistência não específica. Resistência específica.Lactuca sativa (L.). Downy mildew. Non-specific resistance. Specific resistance.The use of resistant cultivars is one of the strategies for downy mildew management. The objective of this study was to evaluate the vertical and horizontal resistance of F5:6 progenies of carotenoid-biofortified lettuce to virulence phenotypes of Bremia lactucae 63/63/51/00, 63/31/19/00 and 63/63/19/00. The experimental design was completely randomized and subdivided into plots that were evaluated over time. In the plots, 12 genotypes of lettuce were used, and the subplots were monitored over time (7th to the 18th day after inoculation). For each virulence phenotypes of Bremia lactucae, a separate experiment was performed with three replicates. To select resistant genotypes, plants were inoculated with distilled water, sporangia removed from infected tissues and Tween 20. The genotypes were evaluated when sporulation appeared on cotyledonary leaves of the susceptible cultivar Solaris, verifying the proportion of necrotic and sporulated plants. There was a correlation between genotypes and times for all virulence phenotypes evaluated. Genotypes UFU-189#2, UFU-206#1, UFU-215#3 and UFU-215#14 showed vertical resistance to virulence phenotypes 63/63/51/00, 63/31/19/00, and 63/63/19/00 of B. lactucae. Horizontal resistance levels were observed in genotype UFU 206#1 for virulence phenotypes 63/63/51/00 and 63/31/19/00; in genotype UFU-66#7 for virulent phenotype 63/31/19/00; and in genotype UFU-215#10 for virulence phenotype 63/63/19/00.O uso de cultivares de alface resistentes é uma das formas de controle do míldio. Objetivou-se avaliar as resistências vertical e horizontal de progênies F5:6 de alface biofortificada com carotenoides aos fenótipos de virulência de Bremia lactucae: 63/63/51/00, 63/31/19/00 e 63/63/19/00. O delineamento experimental utilizado foi inteiramente casualizado, em parcelas subdivididas no tempo. Nas parcelas utilizaram-se os 12 genótipos de alface e nas subparcelas utilizou-se o tempo, sendo este de 7 a 18 dias após a inoculação. Para cada fenótipo de virulência de Bremia lactucae fez-se um experimento separado, com três repetições. Para selecionar genótipos resistentes procedeu-se a inoculação, com mistura de água destilada, esporângios retirados de tecidos infectados do hospedeiro e Tween 20. A avaliação dos genótipos iniciou-se quando houve o aparecimento da esporulação nas folhas cotiledonares da cultivar suscetível Solaris, verificando-se a proporção de plantas necrosadas e com esporulação. Houve interação entre genótipos e tempos para todos os fenótipos de virulência avaliados. Os genótipos de alface biofortificada UFU-189#2, UFU-206#1, UFU-215#3 e UFU-215#14 apresentam resistência vertical aos fenótipos de virulência 63/63/51/00, 63/31/19/00 e 63/63/19/00 de B. lactucae. Níveis de resistência horizontal foram observadas no genótipo UFU-206#1 para os fenótipos de virulência 63/63/51/00 e 63/31/19/00; no genótipo UFU-66#7 para o fenótipo de virulência 63/31/19/00 e no genótipo UFU-215#10 para o fenótipo de virulência 63/63/19/00 de Bremia lactucae.Universidade Federal Rural do Semi-Árido2022-09-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1075210.1590/1983-21252022v35n413rcREVISTA CAATINGA; Vol. 35 No. 4 (2022); 857-864Revista Caatinga; v. 35 n. 4 (2022); 857-8641983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/10752/11051Copyright (c) 2022 Revista Caatingainfo:eu-repo/semantics/openAccessJacinto, Ana Carolina PiresCastoldi, Renata Maciel, Gabriel Mascarenhas Prado, Jair Rocha doCharlo, Hamilton César de Oliveira 2023-06-30T18:00:58Zoai:ojs.periodicos.ufersa.edu.br:article/10752Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:58.211842Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
RESISTÊNCIA VERTICAL E HORIZONTAL DE PROGÊNIES F5:6 DE ALFACE BIOFORTIFICADA COM CAROTENOIDES A Bremia lactucae
title VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
spellingShingle VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
Jacinto, Ana Carolina Pires
Lactuca sativa (L.). Míldio. Resistência não específica. Resistência específica.
Lactuca sativa (L.). Downy mildew. Non-specific resistance. Specific resistance.
title_short VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
title_full VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
title_fullStr VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
title_full_unstemmed VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
title_sort VERTICAL AND HORIZONTAL RESISTANCE OF F5:6 PROGENIES OF CAROTENOID-BIOFORTIFIED LETTUCE TO Bremia lactucae
author Jacinto, Ana Carolina Pires
author_facet Jacinto, Ana Carolina Pires
Castoldi, Renata
Maciel, Gabriel Mascarenhas
Prado, Jair Rocha do
Charlo, Hamilton César de Oliveira
author_role author
author2 Castoldi, Renata
Maciel, Gabriel Mascarenhas
Prado, Jair Rocha do
Charlo, Hamilton César de Oliveira
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Jacinto, Ana Carolina Pires
Castoldi, Renata
Maciel, Gabriel Mascarenhas
Prado, Jair Rocha do
Charlo, Hamilton César de Oliveira
dc.subject.por.fl_str_mv Lactuca sativa (L.). Míldio. Resistência não específica. Resistência específica.
Lactuca sativa (L.). Downy mildew. Non-specific resistance. Specific resistance.
topic Lactuca sativa (L.). Míldio. Resistência não específica. Resistência específica.
Lactuca sativa (L.). Downy mildew. Non-specific resistance. Specific resistance.
description The use of resistant cultivars is one of the strategies for downy mildew management. The objective of this study was to evaluate the vertical and horizontal resistance of F5:6 progenies of carotenoid-biofortified lettuce to virulence phenotypes of Bremia lactucae 63/63/51/00, 63/31/19/00 and 63/63/19/00. The experimental design was completely randomized and subdivided into plots that were evaluated over time. In the plots, 12 genotypes of lettuce were used, and the subplots were monitored over time (7th to the 18th day after inoculation). For each virulence phenotypes of Bremia lactucae, a separate experiment was performed with three replicates. To select resistant genotypes, plants were inoculated with distilled water, sporangia removed from infected tissues and Tween 20. The genotypes were evaluated when sporulation appeared on cotyledonary leaves of the susceptible cultivar Solaris, verifying the proportion of necrotic and sporulated plants. There was a correlation between genotypes and times for all virulence phenotypes evaluated. Genotypes UFU-189#2, UFU-206#1, UFU-215#3 and UFU-215#14 showed vertical resistance to virulence phenotypes 63/63/51/00, 63/31/19/00, and 63/63/19/00 of B. lactucae. Horizontal resistance levels were observed in genotype UFU 206#1 for virulence phenotypes 63/63/51/00 and 63/31/19/00; in genotype UFU-66#7 for virulent phenotype 63/31/19/00; and in genotype UFU-215#10 for virulence phenotype 63/63/19/00.
publishDate 2022
dc.date.none.fl_str_mv 2022-09-20
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/10752
10.1590/1983-21252022v35n413rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/10752
identifier_str_mv 10.1590/1983-21252022v35n413rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/10752/11051
dc.rights.driver.fl_str_mv Copyright (c) 2022 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Revista Caatinga
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 35 No. 4 (2022); 857-864
Revista Caatinga; v. 35 n. 4 (2022); 857-864
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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